Mathematics, 25.08.2019 16:20 WindelCaceus123
Trevor solved the system of equations below. what mistake did he make in his work? 2x + y = 5 x β 2y = 10 y = 5 β 2x x β 2(5 β 2x) = 10 x β 10 + 4x = 10 5x β 10 = 10 5x = 0 x = 0 2(0) + y = 5 y = 5
a. he should have substituted 5 + 2x
b. he combined like terms incorrectly, it should have been 4x instead of 5x
c. he subtracted 10 from the right side instead of adding 10 to the right side
d. he made no mistake
Answers: 1
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Asap! i need this done today and i really donβt understand it. some one ! will mark
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Trevor solved the system of equations below. what mistake did he make in his work? 2x + y = 5 x β 2...
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